CREATE TABLE api_keys (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    environment_id UUID NOT NULL REFERENCES environments(id) ON DELETE CASCADE,
    key_hash VARCHAR(64) NOT NULL,
    key_prefix VARCHAR(12) NOT NULL,
    status VARCHAR(20) NOT NULL DEFAULT 'ACTIVE',
    created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
    revoked_at TIMESTAMPTZ
);

CREATE INDEX idx_api_keys_env ON api_keys(environment_id);
CREATE INDEX idx_api_keys_hash ON api_keys(key_hash);